2256505426011 has 4 divisors (see below), whose sum is σ = 3008673901352. Its totient is φ = 1504336950672.

The previous prime is 2256505425991. The next prime is 2256505426027. The reversal of 2256505426011 is 1106245056522.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2256505426011 - 2³¹ = 2254357942363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256505426031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376084237666 + ... + 376084237671.

It is an arithmetic number, because the mean of its divisors is an integer number (752168475338).

Almost surely, 2^{2256505426011} is an apocalyptic number.

2256505426011 is a deficient number, since it is larger than the sum of its proper divisors (752168475341).

2256505426011 is an equidigital number, since it uses as much as digits as its factorization.

2256505426011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752168475340.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 2256505426011 in words is "two trillion, two hundred fifty-six billion, five hundred five million, four hundred twenty-six thousand, eleven".